On Mon, Jan 23, 2023 at 05:11:14PM +0100, Jan Kara wrote: > I'm all for using only pin/unpin in the end. But you'd still need to handle > the 'put' for the intermediate time when there are still FOLL_GET users of > the bio infrastructure, wouldn't you? Yes, we need it for the transition. But Dave already has a patch to convert the legacy direct-io code as well, at which point we can the retire the get bit.